Improvement in blowing apparatus



J. M. BAILEY.

Improvement in Btowing Apparatus.

No. 132,891. Patented Nov.12,1872..

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V A V -x UNITED STATES PATENT ()FFICE.

JAMES M. BAILEY, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN BLOWING APPARATUS.

Specification forming part of Letters Patent No. 132,891, dated November 12, 1872.

1'0 all whom it may concern:

Be it known that I, JAMES'IVI. BAILEY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Blowing Apparatus; and I do hereby declare the following to be a full, clear, and exact descriptioii of the same, reference being had to the accompanying drawing making a part of this specification, which represents, in vertical longitudinal section, an apparatus constructed and operating after my general plan.

My invention consists in combining with a blowing cylinder one or more blowers for furnishing, through suitable passages and valves, intensified air to said blowing-cylinder, and thus increasing the volume of air so blown through the cylinder.

To'enable others skilled in the art to make and use myinvention, I will proceed to describe the same with reference to the drawing.

A represents a fan-case, in which a fanwheel, a, is caused to run with a high velocity. The air is drawn in by the wheel a through the eye I) of the fan-case, and driven with 7 great force and density through the passage B, which, dividing into two passages, (l D, extend, one to the top and the other to the bottom of the blowing-cylinder E, in which a piston-head, c, is worked through a rod, d, that is moved by any ordinary drivingpower. From the top and bottom of the blowing-cylinder E extend two other passages, F G, which unite into one at e, through which the compressed or intensified air is carried to the blast or furnace where it is to be used. Over the passages O D E F are placed valves 1 2 3 4, which open and close, in accordance with the working of the piston-head c, to draw or let in the air from the fan-blower and to force it out to where it is to be used.

Two or more atmospheres being condensed into one by the fan-blower, this densified air is forced through the blowing-cylinder, and thus the quantity of air and the capacity of the blowing-cylinder is increased and an increased volume of air blown into the furnace. The air may be compressed or condensed by other mechanical means, but the fan-blower is simple and efficient for the purpose.

One, two, or more blast-generating apparatus may be used for condensing the current of air in order to get as high a pressure before entering the blast-cylinder as possible, having due regard, of course, to economy in the application thereof.

Having thus fully described my invention, what I claim therein as new, and desire to secure by Letters Patent, is-

In combination with a blowing cylinder having valved openings in it and :pipes or passages connected to or with said valved openings, one or more blowers for furnishing compressed or densified air to said blowing-cylinder, substantially as and for the purpose described.

JAMES M. BAILEY.

Witnesses:

JOHN MURRAY, WM. H. BRUNT. 

